catdoc is a program for viewing MS Word documents. It produces plain
text output and can optionally convert non-standard characters into 
TeX control sequences.

xls2csv is a program which converts an MS Excel spreadsheet into a
comma-separated value file.

catppt is a utility to extract textual information from MS Powerpoint
files.

Tcl/Tk-based user interface for catdoc is provided in "wordview" package.
